EP0292967A3 - Procédé de réalisation de filmes minces supraconducteurs et solutions pour sa réalisation - Google Patents
Procédé de réalisation de filmes minces supraconducteurs et solutions pour sa réalisation Download PDFInfo
- Publication number
- EP0292967A3 EP0292967A3 EP88108423A EP88108423A EP0292967A3 EP 0292967 A3 EP0292967 A3 EP 0292967A3 EP 88108423 A EP88108423 A EP 88108423A EP 88108423 A EP88108423 A EP 88108423A EP 0292967 A3 EP0292967 A3 EP 0292967A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- forming
- group
- compound selected
- mol
- thin film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000010409 thin film Substances 0.000 title abstract 5
- 150000001875 compounds Chemical class 0.000 abstract 5
- 150000004703 alkoxides Chemical class 0.000 abstract 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 2
- 239000000758 substrate Substances 0.000 abstract 2
- 150000001298 alcohols Chemical class 0.000 abstract 1
- 150000001412 amines Chemical class 0.000 abstract 1
- 238000001354 calcination Methods 0.000 abstract 1
- 239000000356 contaminant Substances 0.000 abstract 1
- 238000005336 cracking Methods 0.000 abstract 1
- 239000010408 film Substances 0.000 abstract 1
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 1
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 150000002576 ketones Chemical class 0.000 abstract 1
- 229910052761 rare earth metal Inorganic materials 0.000 abstract 1
- 150000002910 rare earth metals Chemical class 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
- C03C17/23—Oxides
- C03C17/25—Oxides by deposition from the liquid phase
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/45—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on copper oxide or solid solutions thereof with other oxides
- C04B35/4504—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on copper oxide or solid solutions thereof with other oxides containing rare earth oxides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/87—Ceramics
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N60/00—Superconducting devices
- H10N60/01—Manufacture or treatment
- H10N60/0268—Manufacture or treatment of devices comprising copper oxide
- H10N60/0296—Processes for depositing or forming copper oxide superconductor layers
- H10N60/0324—Processes for depositing or forming copper oxide superconductor layers from a solution
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/20—Materials for coating a single layer on glass
- C03C2217/21—Oxides
- C03C2217/229—Non-specific enumeration
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/20—Materials for coating a single layer on glass
- C03C2217/21—Oxides
- C03C2217/23—Mixtures
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/11—Deposition methods from solutions or suspensions
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/11—Deposition methods from solutions or suspensions
- C03C2218/113—Deposition methods from solutions or suspensions by sol-gel processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S505/00—Superconductor technology: apparatus, material, process
- Y10S505/725—Process of making or treating high tc, above 30 k, superconducting shaped material, article, or device
- Y10S505/734—From organometallic precursors, e.g. acetylacetonates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S505/00—Superconductor technology: apparatus, material, process
- Y10S505/725—Process of making or treating high tc, above 30 k, superconducting shaped material, article, or device
- Y10S505/734—From organometallic precursors, e.g. acetylacetonates
- Y10S505/735—From organometallic precursors, e.g. acetylacetonates by sol-gel process
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Superconductor Devices And Manufacturing Methods Thereof (AREA)
- Compositions Of Oxide Ceramics (AREA)
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13109387 | 1987-05-29 | ||
JP131093/87 | 1987-05-29 | ||
JP18630487 | 1987-07-24 | ||
JP186304/87 | 1987-07-24 | ||
JP14009/88 | 1988-01-25 | ||
JP1400988 | 1988-01-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0292967A2 EP0292967A2 (fr) | 1988-11-30 |
EP0292967A3 true EP0292967A3 (fr) | 1989-10-25 |
Family
ID=27280497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88108423A Withdrawn EP0292967A3 (fr) | 1987-05-29 | 1988-05-26 | Procédé de réalisation de filmes minces supraconducteurs et solutions pour sa réalisation |
Country Status (4)
Country | Link |
---|---|
US (2) | US4920093A (fr) |
EP (1) | EP0292967A3 (fr) |
KR (1) | KR880014593A (fr) |
AU (1) | AU607219B2 (fr) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4897378A (en) * | 1987-05-22 | 1990-01-30 | Massachusetts Institute Of Technology | Preparation of thin film superconducting oxides |
DE3854400T3 (de) * | 1987-06-17 | 1999-09-16 | Nippon Telegraph And Telephone Corp., Tokio/Tokyo | Verfahren zur herstellung von supraleitenden oxyden. |
AU610260B2 (en) * | 1987-10-16 | 1991-05-16 | Furukawa Electric Co. Ltd., The | Oxide superconductor shaped body and method of manufacturing the same |
US4847239A (en) * | 1987-12-07 | 1989-07-11 | Texas Alkyls, Inc. | Hydrocarbon soluble copper alkoxide compositions |
IL89718A0 (en) * | 1988-04-01 | 1989-09-28 | Ppg Industries Inc | Formation of superconducting metal oxide film by pyrolysis |
KR900017216A (ko) * | 1988-04-30 | 1990-11-15 | 나까하라 쯔네오 | 초전도체 박막을 가지는 반도체 기판과 그 제조 방법 |
EP0369533A3 (fr) * | 1988-11-14 | 1991-07-24 | Akzo N.V. | Alkoxydes métalliques solubilisés dans un solvant alkoxyalkanol |
US5252247A (en) * | 1988-11-14 | 1993-10-12 | Akzo America Inc. | Metal (dialkylaminoalcoholate) solutions |
US5089785A (en) * | 1989-07-27 | 1992-02-18 | Cornell Research Foundation, Inc. | Superconducting linear accelerator loaded with a sapphire crystal |
US5084201A (en) * | 1989-11-14 | 1992-01-28 | Akzo N.V. | Soluble copper amino alkoxides |
CA2029789A1 (fr) * | 1989-12-04 | 1991-06-05 | Kenton D. Budd | Fibres souples supraconductrices revetues de zircone |
JPH07110766B2 (ja) * | 1989-12-11 | 1995-11-29 | 財団法人国際超電導産業技術研究センター | 酸化物超電導体の製造方法 |
US5169969A (en) * | 1990-06-07 | 1992-12-08 | Akzo Nv | Process for forming mixed bimetal alkoxide-carboxylate composition and novel compositions thereof |
US5063199A (en) * | 1990-06-15 | 1991-11-05 | Minnesota Mining And Manufacturing Company | Method of depositing thin films of high temperature Bi-Sr-Ca-Cu-O-based ceramic oxide superconductors |
US5087609A (en) * | 1990-09-24 | 1992-02-11 | Akzo Nv | Formation of high temperature superconductor thin films by sol-gel techniques |
EP0607967B1 (fr) * | 1993-01-20 | 2000-06-14 | Murata Manufacturing Co., Ltd. | Production de films minces du système plomb-titanate |
US5607503A (en) * | 1993-09-03 | 1997-03-04 | Refract-A-Gard Pty Limited | Silica-based binder |
US5549880A (en) * | 1994-03-31 | 1996-08-27 | Koksbang; Rene | Method of making lithium-vanadium-oxide active material |
US5560957A (en) * | 1994-10-28 | 1996-10-01 | Xerox Corporation | Electroluminescent device |
US5662737A (en) * | 1996-05-13 | 1997-09-02 | Quantum Group, Inc. | Method for making rare earth metal oxide ceramic precursor compounds and use thereof |
TW346447B (en) * | 1996-12-16 | 1998-12-01 | Matsushita Electric Ind Co Ltd | Chemically bonding material and method for manufacturing the same |
US5942376A (en) * | 1997-08-14 | 1999-08-24 | Symetrix Corporation | Shelf-stable liquid metal arylketone alcoholate solutions and use thereof in photoinitiated patterning of thin films |
US6440211B1 (en) * | 1997-09-02 | 2002-08-27 | Ut-Battelle, Llc | Method of depositing buffer layers on biaxially textured metal substrates |
US5962654A (en) * | 1998-01-30 | 1999-10-05 | International Business Machines Operation | Alkoxyalkoxides and use to form films |
US6002031A (en) * | 1998-09-04 | 1999-12-14 | International Business Machines Corporation | Metal alkoxyalkoxidecarboxylates and use to form films |
JP2976028B1 (ja) | 1998-10-13 | 1999-11-10 | 工業技術院長 | 緻密でエピタキシャルな金属酸化物膜の製造方法と、その金属酸化物前駆体及びその製造方法 |
CN1103328C (zh) * | 2000-04-06 | 2003-03-19 | 中国科学院上海技术物理研究所 | 钛酸锶钡薄膜材料的制备方法 |
KR100393486B1 (ko) * | 2000-09-08 | 2003-08-06 | 학교법인 포항공과대학교 | 솔 코팅법에 의한 란탄함유 티탄산 비스무스 박막의 경제적인 제조방법 |
KR100612570B1 (ko) * | 2004-04-21 | 2006-08-11 | 주식회사 엘지화학 | 신규 결정 구조를 갖는 금속 복합 산화물 및 이들의 이온전도체로서의 용도 |
JP4573790B2 (ja) * | 2006-03-27 | 2010-11-04 | スリーエム イノベイティブ プロパティズ カンパニー | 独立ガラスフィルムの製造方法 |
JP4566149B2 (ja) * | 2006-03-27 | 2010-10-20 | スリーエム イノベイティブ プロパティズ カンパニー | 独立ガラスフィルムの製造方法 |
US7615385B2 (en) | 2006-09-20 | 2009-11-10 | Hypres, Inc | Double-masking technique for increasing fabrication yield in superconducting electronics |
DE102008032127A1 (de) * | 2008-07-08 | 2010-02-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Sol und Verfahren zur Herstellung einer Delafossit-Mischoxidschicht-Struktur auf einem Substrat sowie mit einem Mischoxid beschichtetes Substrat |
US20100015340A1 (en) * | 2008-07-17 | 2010-01-21 | Zenergy Power Inc. | COMPOSITIONS AND METHODS FOR THE MANUFACTURE OF RARE EARTH METAL-Ba2Cu3O7-delta THIN FILMS |
JP5421561B2 (ja) * | 2008-08-20 | 2014-02-19 | 住友電気工業株式会社 | 酸化物超電導薄膜の製造方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0277020A2 (fr) * | 1987-01-30 | 1988-08-03 | Director-General of the Agency of Industrial Science and Technology | Procédé de fabrication d'un matériau supraconducteur |
EP0280292A2 (fr) * | 1987-02-26 | 1988-08-31 | Sumitomo Electric Industries Limited | Procédé de la fabrication d'une couche en matériau d'oxyde supraconducteur |
EP0287258A1 (fr) * | 1987-04-10 | 1988-10-19 | AT&T Corp. | Méthode pour la fabrication d'une couche d'un matériau supraconducteur |
WO1988008609A1 (fr) * | 1987-04-24 | 1988-11-03 | General Atomics | Fabrication de ceramique supraconductrice a degre de purete eleve |
EP0301591A2 (fr) * | 1987-07-31 | 1989-02-01 | Mitsubishi Materials Corporation | Composition et procédé pour la préparation de composés d'oxydes métalliques |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1217927A (fr) * | 1983-04-15 | 1987-02-17 | Tsutomu Nanao | Materiau composite inorganique, et sa preparation |
US4614673A (en) * | 1985-06-21 | 1986-09-30 | The Boeing Company | Method for forming a ceramic coating |
US4636440A (en) * | 1985-10-28 | 1987-01-13 | Manville Corporation | Novel process for coating substrates with glass-like films and coated substrates |
AU1067988A (en) * | 1987-01-22 | 1988-08-04 | Director-General Of Agency Of Industrial Science And Technology | Superconductive material and method of preparing same |
US4880770A (en) * | 1987-05-04 | 1989-11-14 | Eastman Kodak Company | Metalorganic deposition process for preparing superconducting oxide films |
-
1988
- 1988-05-24 AU AU16568/88A patent/AU607219B2/en not_active Ceased
- 1988-05-26 US US07/200,515 patent/US4920093A/en not_active Expired - Fee Related
- 1988-05-26 EP EP88108423A patent/EP0292967A3/fr not_active Withdrawn
- 1988-05-30 KR KR1019880006392A patent/KR880014593A/ko not_active Application Discontinuation
-
1989
- 1989-07-14 US US07/379,972 patent/US5001110A/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0277020A2 (fr) * | 1987-01-30 | 1988-08-03 | Director-General of the Agency of Industrial Science and Technology | Procédé de fabrication d'un matériau supraconducteur |
EP0280292A2 (fr) * | 1987-02-26 | 1988-08-31 | Sumitomo Electric Industries Limited | Procédé de la fabrication d'une couche en matériau d'oxyde supraconducteur |
EP0287258A1 (fr) * | 1987-04-10 | 1988-10-19 | AT&T Corp. | Méthode pour la fabrication d'une couche d'un matériau supraconducteur |
WO1988008609A1 (fr) * | 1987-04-24 | 1988-11-03 | General Atomics | Fabrication de ceramique supraconductrice a degre de purete eleve |
EP0301591A2 (fr) * | 1987-07-31 | 1989-02-01 | Mitsubishi Materials Corporation | Composition et procédé pour la préparation de composés d'oxydes métalliques |
Non-Patent Citations (3)
Title |
---|
1988 PROCEEDINGS 38TH ELECTRONIC COMPONENTS CONFERENCE, 9th - 11th May 1988, pages 176-180, IEEE, New York, US; E.J.A. POPE et al.: "Metalorganic polymer route to superconducting yttrium-barium-copper-oxide wire" * |
JAPANESE JOURNAL OF APPLIED PHYSICS, vol. 27, no. 1, January 1988, pages L53-L54, Tokyo, JP; S. SHIBATA et al.: "Superconducting oxides by the sol-gel method using alkoxides" * |
MATERIALS RESEARCH SOCIETY - PROCEEDINGS OF HIGH-TEMPERATURE SUPERCONDUCTORS SYMPOSIUM, Boston, 30th November - 4th December 1987, vol. 99, pages 323-326; S. KRAMER et al.: "Preparation of thin film YBa2Cu3O6+x ceramic superconductors by the sol-gel process" * |
Also Published As
Publication number | Publication date |
---|---|
AU607219B2 (en) | 1991-02-28 |
EP0292967A2 (fr) | 1988-11-30 |
US5001110A (en) | 1991-03-19 |
AU1656888A (en) | 1988-12-01 |
US4920093A (en) | 1990-04-24 |
KR880014593A (ko) | 1988-12-24 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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